This is an Independent Research Report. Jurisdiction: Illinois Issue: Liability for Injuries in City Park Fact Scenario: In the state of Illinois, within the city of Springfield, there is a well-visited city park named "Springfield Park." The park contains playgrounds, walking trails, and a small lake with paddleboat rentals. During a busy summer weekend, a child sustained injuries while playing on the park's swings. It was discovered that the swing had a defect, leading to the child's broken arm. The child's family is pursuing a legal claim against the city of Springfield, alleging that the city neglected its duty to maintain the park's equipment properly. Question Presented: Under Illinois law, does the city of Springfield have a legal duty to adequately maintain the equipment in Springfield Park, and if so, when does liability for injuries in the park arise?

Please finish the Discussion part and the Conclusion part.